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Title: An efficient synthesis of -(alkylidene)-5, 5-dimethyl--lactones
Authors: Parsekar, Sonia B
Amonkar, Chandan P
Nadkarni, Vishnu S
Tilve, Santosh G
Keywords: Phosphorane;-lactones;acid mediated cyclisation;domino;Wittig reaction
Issue Date: Sep-2009
Publisher: CSIR
Abstract: 2-(-Alkylidene substituted)-5,5-dimethyl--lactones have been synthesized in two steps. The stable phosphorane carboethoxy┬şmethyledene (-prenyl)-triphenylphosphorane is condensed with different carbonyl compounds to afford ,-unsaturated esters which are cyclised using PPA to give title compounds
Page(s): 1333-1336
Appears in Collections:IJC-B Vol.48B(09) [September 2009]

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